Stack-based buffer overflow in pcsc-lite - CVE-2010-4531

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the ATRDecodeAtr function in the Answer-to-Reset (ATR) Handler (atrhandler.c) for pcscd when processing a smart card with an ATR message containing a long attribute value. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2010-4531

External References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607781
• http://labs.mwrinfosecurity.com/files/Advisories/mwri_pcsc-atr-handler-buffer-overflow_2010-12-13.pdf
• http://lists.alioth.debian.org/pipermail/pcsclite-cvs-commit/2010-November/004923.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053079.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053095.html
• http://secunia.com/advisories/42912
• http://secunia.com/advisories/43112
• http://www.debian.org/security/2011/dsa-2156
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:015
• http://www.openwall.com/lists/oss-security/2010/12/22/7
• http://www.openwall.com/lists/oss-security/2011/01/03/3
• http://www.securityfocus.com/bid/45450
• http://www.vupen.com/english/advisories/2010/3264
• http://www.vupen.com/english/advisories/2011/0101
• http://www.vupen.com/english/advisories/2011/0180
• http://www.vupen.com/english/advisories/2011/0256
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4531

Related Security Bulletins

• Multiple vulnerabilities in pcsclite.apdu.fr pcsc-lite
• Gentoo update for PCSC-Lite